<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <title>01-index</title>
    <style>
        /*input {
            background-color: #f00;
        }

        input:disabled {
            background-color: #ddd;
        }*/

        input:checked {
            outline: 2px solid #f00;
        }

    </style>
</head>
<body>

<!--<input type="text" disabled>-->

<input type="radio">
<input type="checkbox">

<input type="range">

</body>
</html>